In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Dolphins have names for one another.
18
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
One litter of kittens can be produced by more than one father.
57
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65
The Savannah is the largest domestic cat breed. It resembles a small leopard and behaves like a dog. They can grow up to 40 lbs, have an eight foot vertical jump, and can be trained to walk on a leash and play fetch.
17